| <?xml version="1.0" encoding="utf-8"?> |
| <!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> |
| |
| <glsa id="200706-09"> |
| <title>libexif: Buffer overflow</title> |
| <synopsis> |
| libexif does not properly handle image EXIF information, possibly allowing |
| for the execution of arbitrary code. |
| </synopsis> |
| <product type="ebuild">libexif</product> |
| <announced>June 26, 2007</announced> |
| <revised>June 26, 2007: 01</revised> |
| <bug>181922</bug> |
| <access>remote</access> |
| <affected> |
| <package name="media-libs/libexif" auto="yes" arch="*"> |
| <unaffected range="ge">0.6.16</unaffected> |
| <vulnerable range="lt">0.6.16</vulnerable> |
| </package> |
| </affected> |
| <background> |
| <p> |
| libexif is a library for parsing, editing and saving EXIF metadata from |
| images. |
| </p> |
| </background> |
| <description> |
| <p> |
| iDefense Labs have discovered that the exif_data_load_data_entry() |
| function in libexif/exif-data.c improperly handles integer data while |
| working with an image with many EXIF components, allowing an integer |
| overflow possibly leading to a heap-based buffer overflow. |
| </p> |
| </description> |
| <impact type="normal"> |
| <p> |
| An attacker could entice a user of an application making use of a |
| vulnerable version of libexif to load a specially crafted image file, |
| possibly resulting in a crash of the application or the execution of |
| arbitrary code with the rights of the user running the application. |
| </p> |
| </impact> |
| <workaround> |
| <p> |
| There is no known workaround at this time. |
| </p> |
| </workaround> |
| <resolution> |
| <p> |
| All libexif users should upgrade to the latest version: |
| </p> |
| <code> |
| # emerge --sync |
| # emerge --ask --oneshot --verbose ">=media-libs/libexif-0.6.16"</code> |
| </resolution> |
| <references> |
| <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4168">CVE-2006-4168</uri> |
| </references> |
| <metadata tag="requester" timestamp="Sat, 16 Jun 2007 06:17:21 +0000"> |
| jaervosz |
| </metadata> |
| <metadata tag="bugReady" timestamp="Sat, 16 Jun 2007 06:17:44 +0000"> |
| jaervosz |
| </metadata> |
| <metadata tag="submitter" timestamp="Tue, 19 Jun 2007 02:58:18 +0000"> |
| shellsage |
| </metadata> |
| </glsa> |